Existence, uniqueness, and continuous dependence of the solution to a hyperbolic equation with an unknown coefficient. Gulf Journal of Mathematics, [S. l.], v. 22, n. 2, 2026. DOI: 10.56947/gjom.v22i2.4102. Disponível em: https://gjom.org/index.php/gjom/article/view/4102. Acesso em: 23 sep. 2026.